Vermont Gage 112403850 Class Zz Minus Plug Pin Gage 3.85 Mm

Product Description

The VERMONT GAGE 112403850 is a Class ZZ Minus plug pin gage used to verify that a bored or drilled feature does not exceed its maximum allowable size. Manufactured from steel with a 10 microfinish surface coating, this pin gage delivers a tolerance of 0.00508 mm, making it appropriate for NoGo inspection work where precise dimensional rejection is required. At 2 inches overall length, it fits standard gage handle holders used throughout metrology and machine shop environments. Each unit ships with a Certificate of Accuracy that carries NIST traceability, satisfying quality-system documentation requirements for ISO and AS9100 shops.

This gage is intended for NoGo inspection applications, confirming that a hole or bore has not been machined oversize. It is also suited for setting and verifying micrometers, verniers, and other measuring devices where a known reference diameter is needed. Typical users include quality technicians, machinists, and toolroom professionals working in precision manufacturing, aerospace, automotive, and general metalworking environments where hole tolerances must be held to tight limits.

Key Features

• Class ZZ Minus tolerance class: 0.00508 mm tolerance for NoGo inspection
• Steel construction with 10 microfinish surface coating for repeatable contact accuracy
• 2 inches overall length compatible with standard gage handle holders
• Includes Certificate of Accuracy with NIST traceability for quality-system compliance
• Suitable for setting micrometers, verniers, and other precision measuring devices

Compatibility

Designed as an OEM-style replacement and standard-stock plug pin gage for use with conventional gage handle holders sized for 3.85 mm diameter pin gages in NoGo inspection setups.

Installation Notes

Pin gages are handled by quality technicians and toolroom personnel and require no mechanical installation. Before use, ensure the gage and the workpiece feature are at the same ambient temperature to avoid thermal expansion errors. Clean the gage and bore with a lint-free cloth before gauging; never force a plug gage into a feature. Store the gage in its protective case when not in use to preserve the surface finish and dimensional integrity.